Design method of multifunctional space gravitational wave detector based on TRIZ

A design method and gravitational wave technology, applied in the field of precision measurement, can solve the problem of not directly detecting gravitational waves, and achieve the effect of simple and practical principle, convenient scientific research and convenient operation

Inactive Publication Date: 2014-03-26
JIANGNAN UNIV
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[0006] Human beings have been studying gravitational wave detectors for

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  • Design method of multifunctional space gravitational wave detector based on TRIZ
  • Design method of multifunctional space gravitational wave detector based on TRIZ
  • Design method of multifunctional space gravitational wave detector based on TRIZ

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[0016] The patent of the present invention discloses the technical evolution route of researching optical interferometer by using TRIZ and optical interference principle. According to the high frequency band (10Hz-10kHz) is the most sensitive frequency band of the laser interferometer for detecting gravitational waves on the ground; the middle frequency band (0.1Hz-10Hz) is the short arm length (10 3 -10 5 km) the most sensitive frequency band of the space gravitational wave detection laser interferometer; the low frequency band (10 -4 Hz-10 -1 Hz) is the arm length of the laser interferometer for detecting gravitational waves in deep space (10 6 -10 9 km) the most sensitive frequency band. We analyze ground-based laser interferometer gravitational wave detectors, such as figure 1 As shown, it is found that the adaptability of the instrument system to detect low- and medium-frequency gravitational waves is poor. According to the 2008 TRIZ contradiction matrix table, the "...

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Abstract

The invention discloses a design method of a multifunctional space gravitational wave detector based on the TRIZ. Seven inventive principles recommended by the TRIZ serve as technological evolution paths, a ground laser interference gravitational wave detector can be evolved into a multifunctional space gravitational wave detector. The multifunctional space gravitational wave detector comprises devices such as spacecrafts. As shown in the figure, the multifunctional space gravitational wave detector is characterized in that the three spacecrafts form an equilateral triangle constellation with the 103-109km side length, the center of the equilateral triangle constellation moves on the earth orbit, an optical table on each spacecraft and an optical table on the adjacent spacecraft can have interference through coherent light beams generated by lasers, if gravitational waves scan the spacecrafts, the strength of light passing through photodiodes of photodetectors changes, a differentiator and a correlator are used for calculating the relation between the strength of the light and the phase position, and the value of the gravitational waves to be measured is obtained. The multifunctional space gravitational wave detector is characterized in that the low and medium frequency gravitational waves are detected, and a double-star system, large-mass black holes and random background gravitational waves are surveyed.

Description

technical field [0001] The invention relates to the field of precision measurement realized by using TRIZ and the principle of optical interference, in particular to a design method of a multifunctional space gravitational wave detector based on TRIZ. Background technique [0002] Einstein predicted the existence of gravitational waves when he created the general theory of relativity. Using the gravitational radiation theory of general relativity, three conclusions about gravitational waves can be deduced: (1) gravitational waves exist and propagate at the speed of light; (2) gravitational waves are transverse waves with two polarization states; (3) do not exist For the gravitational radiation of monopole and dipole, as long as the third-order derivative of the quadrupole moment of the system mass is not zero, there will be gravitational waves radiated. Gravitational waves have energy, so they can be detected. [0003] Astronomers have indirectly verified the existence of ...

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Application Information

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IPC IPC(8): G01V7/00
Inventor 吴寿煜张宇红吴佳蓬
Owner JIANGNAN UNIV
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